Buteo borealis . 
Lake Umbagog, Maine. 
1894. A superb adult Red-tail was soaring and hovering over a 
Sept.6. hill side in Newry (I was driving between Bethel and Lakeside)- 
It thrice hung suspended on set wings for several seconds . 
without drifting , facing the strong wind. I had hitherto 
supposed that none of our large Hawks except Arohibuteo were 
able to poise in this way. 
Buteo bore&lis . 
1895, Lake Umbagog. 
September 24. 
On the I9th I saw circling over Sweat's meadow a large 
-iB.teo which I called a Red-tail, but which I noticed had a whitish 
rump. We found to-day what was doubtless the same bird, sitting 
on a stub at the head of Errol Hill Pond. It flew presently and 
came past us within 100 yards, soaring and rising, giving me a 
the 
good view of it through ay glass. It looked very like an immature 
Red-tail, but it was rather small for that species and the whole 
rump was dirty white. 
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